|Full name||Secundino Suárez Vázquez|
|Date of birth||13 April 1955|
|Place of birth||Sotrondio, Spain|
|Height||1.70 m (5 ft 7 in)|
|Playing position||Left back|
|1976–1977||→ Poblense (loan)|
* Senior club appearances and goals counted for the domestic league only.
His professional career was intimately connected with Sporting de Gijón, which he represented for 15 years.
Born in Sotrondio, Asturias, Cundi spent his professional career almost entirely with local powerhouse Sporting de Gijón, save for a one-year loan spell with UD Poblense due to compulsory military service.
From the age of 20 onwards, he was an undisputed starter for the La Liga club, appearing in nearly 400 official games during his 15-year spell: in the 1986–87 season, Cundi played 41 matches (3,549 minutes) for an eventual fourth-place finish; he did not receive one single red card during his career.
Cundi earned nine caps for the Spanish national team in two-and-a-half years, and was selected for UEFA Euro 1980. His debut came on 4 October 1978 in a Euro 1980 qualifier against Yugoslavia (1–2 loss, in Zagreb).
Cundi's son, Rubén, was also a footballer. An attacking midfielder, he also started out at Sporting de Gijón, playing six seasons with the first team in Segunda División and spending most of his career at the same level with two other clubs.
- Ruben Suárez, un debut tardío (Ruben Suárez, a late debut); Notas de Fútbol, 8 September 2010 (Spanish)